The Royal Emerald is a powerful gem in Diablo 4 that can greatly improve your socketed equipment. It has special bonuses depending on the gear type it is applied to. Whether you want to improve your armor or make your jewelry stronger, Royal Emerald is a valuable gem. This guide explains what effects it has as a royal emerald, how it can be upgraded and where it can be put.

Effects of the Royal Emerald:

In this case, the benefits of using the Royal Emerald depend on whether you apply it to weapons or other items. Here are its effects in further detail:

Armor: +[0.120] Thorns

With the Royal Emerald placed in armor, players strengthen their thorns damage. Thorns damage is when enemies take damage from passives when they physically hit the players. The amount of thorns damage inflicted during close quarters combat by your character is increased with this jewel making you more resistant.

Jewelry: [22.1-1%] Poison Resistance

Likewise, when employed in jewelry like rings and amulets, this item affords poison resistance to players possessed of them—this includes those from bosses and other enemies. The royal emerald plugged into your rings offers extra protection against these toxins which will reduce poison damages.

Upgrading the Royal Emerald:

But if you want to make the most out of a powerful piece like this one – upgrade it into higher tiers. However, upgrading does not come cheap as requires three other gems and certain amount of gold but boosts immensely efficiency for an item equipped with a royal emerald gem. Here’s how you upgrade a royal emerald:

Crafting Requirements:

To make a Royal Emerald you need:

3 Flawless Emerald

50,000 Gold

Socketing the Royal Emerald:

To insert it into any piece of socketed equipment that one has; including armors, weapons, rings and amulets; once one has acquired a Royal Emerald. The Jeweler is an expert in this kind of job. Jeweler is capable of safely removing gems from equipment so that they can be used in other combinations on different gear pieces. User has the flexibility to experiment and optimize his/her equipment depending on the playstyle at that moment.

Thus, you need to know what type of gear you are socketing the Royal Emerald into. Armor is generally the best for Thorns because it adds more damage to your attacker. Conversely, jewelry works best with Poison Resistance as it shields you from poisons.